The more money i earn, the less money I have. When i was an intern (hell, when I worked part time at McD's earning £4 an hour as a teenager) I thought i was minted, i could go out whenever I wanted and i had money! Then I got my first real job, £26K down south - then I was thinking 'oo think of all the things I can buy', before realising rent + bills + council tax was £1000 a month..
Then you get another pay rise, you think 'oh i could get a nice car' - there goes the extra income, and repeat ad infinitum. Then add kids. I swear I had more disposable income as a % when I was an intern than I do now on a significant amount more.